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//
// FLUID undo definitions for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#ifndef undo_h
#define undo_h
class Fl_Widget;
extern int undo_current; // Current undo level in buffer
extern int undo_last; // Last undo level in buffer
extern int undo_save; // Last undo level that was saved
void redo_cb(Fl_Widget *, void *); // Redo menu callback
void undo_cb(Fl_Widget *, void *); // Undo menu callback
void undo_checkpoint(); // Save current file to undo buffer
void undo_clear(); // Clear undo buffer
void undo_resume(); // Resume undo checkpoints
void undo_suspend(); // Suspend undo checkpoints
#endif // !undo_h
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